in Industry2022 Oneplus 9 Pro | Downgrade to OXYGEN OS 11 by SICERIK TECH December 31, 2022, 9:57 am 1.5k Views Oxygen OS 12 is littered with bugs and problems. This is why I have chosen to downgrade back to Oxygen Os 11 on my Oneplus 9 Pro. Downgrade Link #oneplus9pro #oxygenos11 #oxygenos12 Share this: See more Previous article WARZONE 2.0 | Ryzen 7 5800x3d + RTX 3080 TI | ULTRA (2K) Next article Das Dilemma mit macOS Ventura (Warum ich noch NICHT AKTUALISIERE)